ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Lock-down Thread
by JoeTestingEngr - 04/18/21 12:08 AM
Where is Everyone?
by gfretwell - 04/17/21 07:32 PM
Upside Down ThreeWay
by Trumpy - 04/17/21 06:25 AM
Thought this was funny
by Trumpy - 04/17/21 06:22 AM
How's all our Non-US folks doing?
by Trumpy - 04/17/21 05:37 AM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 16 guests, and 18 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Sign Disconnect #188420 08/07/09 07:58 PM
Joined: Jan 2004
Posts: 1,507
G
George Little Offline OP
Member
Article 600.6 ask for a disconnect for a sign. If a sign builder installs a switch as an integral part of the sigh does this satisfy the requirement? One must realize that the UL standard does not require a disconnect as part of the requirements for sign construction.


George Little
2017 / 2014 NEC & Related Books and Study Guides
Re: Sign Disconnect [Re: George Little] #188422 08/07/09 09:25 PM
Joined: Jul 2004
Posts: 9,577
G
gfretwell Offline
Member
If it was at the circuit entry into the sign, disconnected all ungrounded conductors and was marked as the disconnect with an "off" position I would allow it.


Greg Fretwell
Re: Sign Disconnect [Re: gfretwell] #188451 08/09/09 07:29 PM
Joined: Jan 2005
Posts: 315
L
luckyshadow Offline
Member
yes a factory installed disconnecting switch that disconnects all ungrounded conductors is allowed

Re: Sign Disconnect [Re: luckyshadow] #188489 08/11/09 04:57 PM
Joined: Jan 2004
Posts: 1,507
G
George Little Offline OP
Member
I guess I left out a very key point. The branch circuit enters the back of the sign enclosure, travels through the sign and then exits the sign to terminate on the line side of a WP switch mounted on the sign. The load side of the switch has conductors that re-enter the sign enclosure and connect up to the Xformer of the sign. I feel that this a violation of 600.6 since the switch does not disconnect all un-grounded conductors in the sign. What do you think?


George Little
Re: Sign Disconnect [Re: George Little] #188494 08/11/09 07:36 PM
Joined: Jul 2004
Posts: 9,577
G
gfretwell Offline
Member
Note I said "at the circuit entry into the sign". I agree with you, either move the disconnect to the conduit entry point or change where the conduit enters to make it next to the switch, preferably in a separate enclosure within the sign.
This could be as simple as a 4x4 deep ring that covered the switch terminals and conduit entry with a blank cover on the other side.
I believe the purpose of the disconnect is to make the interior of the equipment safe. I am not making a proposal but I do think a label over the disconnect enclosure saying something like "line voltage present with disconnect off" is a good idea.


Greg Fretwell

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
pcsailor
pcsailor
Minneapolis, MN, USA
Posts: 21
Joined: September 2019
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 11
Popular Topics(Views)
277,781 Are you busy
211,326 Re: Forum
198,370 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3